1302001312 has 12 divisors (see below), whose sum is σ = 2563315146. Its totient is φ = 651000640.

The previous prime is 1302001301. The next prime is 1302001331. The reversal of 1302001312 is 2131002031.

It can be written as a sum of positive squares in only one way, i.e., 902161296 + 399840016 = 30036^2 + 19996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1302001292 and 1302001301.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20343739 + ... + 20343802.

Almost surely, 2^1302001312 is an apocalyptic number.

It is an amenable number.

1302001312 is a deficient number, since it is larger than the sum of its proper divisors (1261313834).

1302001312 is an equidigital number, since it uses as much as digits as its factorization.

1302001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40687551 (or 40687543 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1302001312 is about 36083.2552855199. The cubic root of 1302001312 is about 1091.9526517239.

Adding to 1302001312 its reverse (2131002031), we get a palindrome (3433003343).

The spelling of 1302001312 in words is "one billion, three hundred two million, one thousand, three hundred twelve".